CN101374652B - Nonwoven-fabric laminate, moisture-permeable nonwoven-fabric laminated sheet comprising nonwoven-fabric laminate, and sanitary supply employing these - Google Patents

Nonwoven-fabric laminate, moisture-permeable nonwoven-fabric laminated sheet comprising nonwoven-fabric laminate, and sanitary supply employing these Download PDF

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Publication number
CN101374652B
CN101374652B CN2007800037606A CN200780003760A CN101374652B CN 101374652 B CN101374652 B CN 101374652B CN 2007800037606 A CN2007800037606 A CN 2007800037606A CN 200780003760 A CN200780003760 A CN 200780003760A CN 101374652 B CN101374652 B CN 101374652B
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weaving cloth
nonwoven fabric
spun
woven
paid
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CN101374652A (en
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久本敬司
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Mitsui Chemicals Inc
Mitsui Chemical Industry Co Ltd
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Mitsui Chemical Industry Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F13/51478—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers
    • A61F13/5148—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers having an impervious inner layer and a cloth-like outer layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Laminated Bodies (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

A nonwoven-fabric laminate which comprises a first spun-bonded nonwoven fabric comprising a propylene polymer (first SB nonwoven fabric), a melt-blown nonwoven fabric comprising a propylene polymer and superposed on the first SB nonwoven fabric, and a second spun-bonded nonwoven fabric comprising a propylene polymer (second SB nonwoven fabric) and superposed on the melt-blown nonwoven fabric and which has an overall basis weight of 30 g/m<2> or less. The nonwoven-fabric laminate is characterized in that the first SB nonwoven fabric has a basis weight of 3-25 g/m<2>, the second SB nonwoven fabric has a basis weight of 1-11 g/m<2>, the ratio of the basis weight of the first SB nonwoven fabric to the basis weight of the second SB nonwoven fabric is 1.6 or higher, the ratio of the thickness of the first SB nonwoven fabric to the thickness of the second SB nonwoven fabric is 1.4 or higher, the melt-blown nonwoven fabric has a basis weight less than 3 g/m<2>, and the areal proportion of press-bonded parts is 6-25%.

Description

Layered nonwoven fabric, the poisture-penetrability non-weaving cloth laminates that uses layered nonwoven fabric and the amenities that uses them
Technical field
The present invention relates to the flexibility excellence and there is resistance to water, simultaneously when using hot-melt adhesive by other tablet laminatings such as non-weaving cloth and poisture-penetrability film, hot-melt adhesive soak into nonwoven layer and be exuded to the outside phenomenon, so-called bonding agent pollutes the layered nonwoven fabric be inhibited, and uses the poisture-penetrability non-weaving cloth laminates of described layered nonwoven fabric and the amenities that uses them.
Background technology
In the past, with in abandoning the amenities such as type diaper, training pants, physiology phase articles for use, for multiple purpose, in lining, mobile layer, bottom and side rivel etc., used non-weaving cloth.Wherein, spunbond (below be sometimes referred to as " the SB ") non-weaving cloth that contains acrylic polymer or clip so-called SMS non-weaving cloth that contains the melting and spraying of acrylic polymer (below be sometimes referred to as " MB ") non-weaving cloth etc. with the SB non-weaving cloth, due to light and soft, so make with the most use.But the SMS non-weaving cloth is compared with the SB non-weaving cloth of individual layer, although resistance to water improves, the tendency of hardening is a little arranged, pros and cons are separately arranged.
Method as the flexibility of improving the SMS non-weaving cloth, resistance to water etc., the non-weaving cloth as SMS was proposed, the MB nonwoven layer that the polypropylene SB non-weaving cloth that the use fiber number is 0.7～1.5dtex and fibre diameter are 1～5 μ m, the order of MB non-weaving cloth is paid at 1g/m 2above and account for that catalogue pays below 33%, and 5% modulus index is SMS non-weaving cloth (for example patent documentation 1) such more than 0.41.
But, 5% modulus index is the SMS non-weaving cloth more than 0.41, flexibility or not good enough, and also to be layered in the two-layer SB non-weaving cloth of MB non-weaving cloth be the SMS non-weaving cloth that identical order is paid, can become bulk, so also insufficient as requiring softness and light amenities.
In addition, by MB non-weaving cloth or SMS non-weaving cloth, during for amenities, in order further to give function, laminating (stacked) poisture-penetrability film, water proofing property film etc., can be used hot-melt adhesive as its means sometimes.Due to described hot-melt adhesive, can penetrate in nonwoven layer when the melting, so wish to prevent that described hot-melt adhesive is exuded to the opposing face of nonwoven layer.
Patent documentation 1: TOHKEMY 2004-3096 communique
Summary of the invention
The problem that invention will solve
The object of the invention is to, provide a kind of and using hot-melt adhesive etc. by the SMS non-weaving cloth during with the laminating of other tablets, bonding agent pollutes and is inhibited and flexibility excellence, layered nonwoven fabric with resistance to water and gas permeability.
The scheme of dealing with problems
The inventor etc. have studied the problems referred to above, discovery pay by the order of the SB non-weaving cloth (a SB non-weaving cloth) that makes to contact with hot-melt adhesive etc. that the order that becomes the SB non-weaving cloth (the 2nd SB non-weaving cloth) do not contacted with hot-melt adhesive etc. pays more than 1.6 times, and thickness is become more than 1.4 times, and then make the order of MB non-weaving cloth pay attenuation, just can realize above-mentioned purpose.
Be also, the invention provides a kind of layered nonwoven fabric, it is characterized in that, it is to comprise the first spun-bonded non-woven of containing acrylic polymer, be laminated in the melt-blowing nonwoven that contains acrylic polymer on this first spun-bonded non-woven, be laminated in the second spun-bonded non-woven that contains acrylic polymer on this melt-blowing nonwoven, and catalogue is paid at 30g/m 2following layered nonwoven fabric, the order of the first spun-bonded non-woven is paid at 3～25g/m 2scope, the order of the second spun-bonded non-woven is paid at 1～11g/m 2scope, and the order of the first spun-bonded non-woven pay ratio (order of pay/the second spun-bonded non-woven of the order of the first spun-bonded non-woven is paid) that the order of the second spun-bonded non-woven pays more than 1.6, the ratio (thickness of the thickness of the first spun-bonded non-woven/second spun-bonded non-woven) of the thickness of the first spun-bonded non-woven and the thickness of the second spun-bonded non-woven is more than 1.4, the order of melt-blowing nonwoven is paid and is less than 3g/m 2, the compression joint area rate is in 6～25% scope.
Above-mentioned layered nonwoven fabric is preferably, and forms the fiber number of fiber of the first spun-bonded non-woven and the second spun-bonded non-woven below 1.4 dawn, forms the fibre diameter of fiber of melt-blowing nonwoven in the scope of 1～5 μ m.
5% modulus index of preferred above-mentioned layered nonwoven fabric is at 0.15～0.38N/30mm (g/m 2) scope.
Present invention resides on the surface of the first spun-bonded non-woven of above-mentioned layered nonwoven fabric the poisture-penetrability non-weaving cloth laminates formed by the stacked poisture-penetrability film of hot-melt adhesive.
Poisture-penetrability non-weaving cloth laminates of the present invention is preferably, and the poisture-penetrability film is perforated membrane.
The present invention includes the use that above-mentioned poisture-penetrability non-weaving cloth laminates is used as to bottom and abandon the type diaper.
The present invention includes the women use sanitary napkin that above-mentioned poisture-penetrability non-weaving cloth laminates is used as to bottom.
The present invention includes the amenities that contains above-mentioned layered nonwoven fabric.
The present invention includes the amenities that contains above-mentioned poisture-penetrability non-weaving cloth laminates.
The present invention includes the amenities that contains above-mentioned layered nonwoven fabric and above-mentioned poisture-penetrability non-weaving cloth laminates.
Present invention resides on the surface of the first spun-bonded non-woven of above-mentioned layered nonwoven fabric the composite non-weaving cloth laminates formed by stacked more than one the tablet of selecting of hot-melt adhesive from the group formed by non-weaving cloth, fabric, paper, flashing, net and synthetic resin.
The present invention includes the amenities that contains above-mentioned composite non-weaving cloth laminates.
The above-mentioned amenities that contains the composite non-weaving cloth laminates, also can contain the composite non-weaving cloth laminates as three-dimensional rivel.
The invention effect
With regard to layered nonwoven fabric of the present invention, the first spun-bonded non-woven of coating hot-melt adhesive side forms thickly, when being applied to the lip-deep hot-melt adhesive layer of the first spun-bonded non-woven and being heated, most of hot-melt adhesive of melting is diffusion absorption in the space of this first spun-bonded non-woven just.Therefore arrive and be used for obstruct and can cause that the amount of hot-melt adhesive of melt-blowing nonwoven of the hot-melt adhesive of pollution just tails off, just can basically intercept the hot-melt adhesive that can cause pollution fully with this melt-blowing nonwoven, so hot-melt adhesive does not almost arrive the namely surface of the second spun-bonded non-woven of rear side.
And, by disposing the first thick spun-bonded non-woven, the quantitative change of the hot-melt adhesive of arrival melt-blowing nonwoven is few, thereby can reduce the required melt-blowing nonwoven shared ratio in the catalogue of layered nonwoven fabric is paid of intercept polluting, so can improve the flexibility as layered nonwoven fabric, with overall on there is the layered nonwoven fabric in the past that equal catalogue pays and compare, can give play to more soft use sense.
Thereby layered nonwoven fabric of the present invention, when almost completely preventing that hot-melt adhesive from polluting, also is imbued with flexibility very much.
The accompanying drawing explanation
Fig. 1 is the side schematic view of layered nonwoven fabric of the present invention.
Fig. 2 is the side schematic view of poisture-penetrability non-weaving cloth laminates of the present invention.
Fig. 3 is as the typical example of amenities of the present invention, with the side schematic view of the absorbability part of abandoning the type diaper.
Symbol description
10: layered nonwoven fabric
12: melt-blowing nonwoven
14: the first spun-bonded non-wovens
16: the second spun-bonded non-wovens
18: hot-melt adhesive coating predetermined face
20: poisture-penetrability non-weaving cloth laminates
22: hot-melt adhesive
24: moisture permeable membrane
30: with abandoning the absorbability part of type diaper
32: top layer
34: absorber
The specific embodiment
Then, the amenities that illustrates layered nonwoven fabric of the present invention, poisture-penetrability non-weaving cloth laminates and use them.
As shown in Figure 1, layered nonwoven fabric 10 of the present invention, have the structure that stacked above one another has the first spun-bonded non-woven (below be called a SB non-weaving cloth) 14, melt-blowing nonwoven (below be called the MB non-weaving cloth) the 12, second spun-bonded non-woven (below be called the 2nd SB non-weaving cloth) 16.The one SB non-weaving cloth 14 and the 2nd SB non-weaving cloth 16, consist of one deck spun-bonded non-woven layer at least respectively, and 12 of MB non-weaving cloths consist of one deck meltblown nonwoven layer at least.For the productivity ratio with best obtains layered nonwoven fabric 10 of the present invention, preferably the formation of a SB non-weaving cloth 14 is that two-layer formation above, that the formation of the 2nd SB non-weaving cloth 16 is one deck, MB non-weaving cloth 14 is one deck.
The surface of the one SB non-weaving cloth 14, in the situation of making as shown in Figure 2 poisture-penetrability non-weaving cloth laminates 20 etc., just become the hot-melt adhesive coating predetermined face 18 that will be coated with hot-melt adhesive.
In the present invention, a SB non-weaving cloth 14 and the 2nd SB non-weaving cloth 16, be to use following acrylic polymer, by the melt spinning by spun-bond process, forms.
As acrylic polymer, can enumerate particularly the copolymer of homopolymers, propylene and other alpha-olefins of propylene.As other alpha-olefins of copolymerization, can example ethene, the alpha-olefin of the carbon number 2～20 such as 1-butylene, 1-amylene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, 3-Methyl-1-pentene, 3-ethyl-1-amylene, 4-methyl-1-pentene, 4-methyl isophthalic acid-hexene.Wherein, optimal ethylene, 1-butylene, especially optimal ethylene.This other alpha-olefins, can be separately a kind of or combine the two or more copolymerization that come.When using the copolymer of propylene and other alpha-olefins, the content of the construction unit that comes from alpha-olefin in copolymer is preferably below 5.0mol%.
And then, in the present invention, also can, as required in not damaging the object of the invention scope, coordinate other polymer, colouring agent, heat-resisting stabilizing agent, nucleator etc. in acrylic polymer.
And MB non-weaving cloth 12 also can be used the acrylic polymer of above-mentioned record the samely with a SB non-weaving cloth 14, the 2nd SB non-weaving cloth 16.
The formation of layered nonwoven fabric 10 of the present invention is MB non-weaving cloth 12 as shown in Figure 1 by a SB non-weaving cloth 14 and the 2nd SB nonwoven layer 16 is clamped and partial crimping and the formation that becomes one.
Form a SB non-weaving cloth 14 of this layered nonwoven fabric 10 and the melt flow rate (MFR) of the acrylic polymer that the 2nd SB non-weaving cloth 16 is used (measures under the condition of 230 ℃ of temperature, loading 2.16kg, below also be called MFR) be preferably 20～200g/10min, more preferably 50～150g/10min.This be because, if MFR is less than this value, likely cause being difficult to spinning when obtaining the thin fiber of fiber number, if be greater than this value, likely cause the physics values such as the hot strength reduction of fiber or the layered nonwoven fabric of gained.
In addition, the melt flow rate (MFR) that forms the acrylic polymer that the MB non-weaving cloth 12 of this layered nonwoven fabric 10 uses (is measured under the condition of 230 ℃ of temperature, loading 2.16kg, below also be called MFR) be preferably 200～3000g/10min, more preferably 500～2500g/10min.This be because, if MFR is less than this value, be difficult to spinning while likely causing the fiber thin in the acquisition fiber number, if be greater than this value, when spinning, likely do not become fibrous and produce the resin fritter that is called flash of light streak (shot), quality (uniformity) worsens and causes that barrier is low, or makes the harsh feeling on gained non-weaving cloth surface become obvious.
Form the fibre diameter of acrylic polymer fiber of a SB non-weaving cloth 14 and the 2nd SB non-weaving cloth 16 normally below 1.4 dawn, preferably in the scope at 0.1～0.8 dawn.If the fibre diameter of acrylic polymer fiber is in above-mentioned scope, the layered nonwoven fabric obtained will be imbued with flexibility, and can stop melting to be polluted, so preferably.In addition, if fibre diameter in this scope, a SB non-weaving cloth 14 is different with the fibre diameter of the 2nd SB non-weaving cloth 16 also is fine.
The fibre diameter of the acrylic polymer fiber of formation MB non-weaving cloth 12 is 1 μ m～5 μ m normally, are preferably 1 μ m～2 μ m.MB non-weaving cloth 12 is by by fibre diameter, the fine fibre in above-mentioned scope forms non-weaving cloth, becomes that mesh stops up and barrier is excellent and be imbued with the layer of flexibility.Can prepare by known method in the past by above-mentioned MB non-weaving cloth 12.For example from nozzle, melt extrude acrylic polymer, by hot-air, be shaped to superfine fibre, just can prepare MB non-weaving cloth 12.In addition, want to make the fibre diameter of MB non-weaving cloth thin, just need to reduce the discharge of every nozzle bore, can cause like this low of productivity ratio, so fibre diameter is preferably more than 1 μ m.
Layered nonwoven fabric 10 of the present invention, by the hot rolling line, by partially crimping, its compression joint area rate is 6～25%.If this area occupation ratio surpasses the higher limit of above-mentioned scope, 5% modulus intensity of layered nonwoven fabric 10 improves, and flexibility has the tendency of deterioration simultaneously, so bad.In addition, if area occupation ratio is less than the lower limit of above-mentioned scope, the hot strength deficiency of layered nonwoven fabric 10, or easily fluffing, so bad.
Layered nonwoven fabric 10 of the present invention, catalogue is paid at 30g/m 2below.If catalogue is paid over 30g/m 2, while making duplexer, whole thickening, have the tendency that causes sense of touch to be hardened.
5% modulus index of layered nonwoven fabric 10 of the present invention is usually at 0.15～0.38N/30mm (g/m 2) scope.Layered nonwoven fabric with this 5% modulus index, more be imbued with flexibility, and intensity is high and stable, can be used as poisture-penetrability non-weaving cloth laminates with the poisture-penetrability film-stack.
In the present invention, the order that forms the MB non-weaving cloth 12 of this layered nonwoven fabric 10 is paid and is less than 3g/m 2, be preferably 0.05～0.9g/m 2.Surpass above-mentioned scope if order is paid, the hard texture of MB non-weaving cloth 12 causes layered nonwoven fabric 10 integral body to become hardening, so bad.
In addition, the order that forms a SB non-weaving cloth 14 of layered nonwoven fabric 10 of the present invention is paid usually at 3～25g/m 2scope in, the order of the 2nd SB non-weaving cloth 16 is paid usually at 1～11g/m 2scope in.And, the order of the SB non-weaving cloth 14 in layered nonwoven fabric 10 of the present invention is paid the ratio (order of pay/the 2nd SB non-weaving cloth of the order of a SB non-weaving cloth is paid) that the order of the 2nd SB non-weaving cloth 16 pays (below be called order pay ratio) more than 1.6, be preferably 1.8～3.0, and the ratio (thickness of the thickness of a SB non-weaving cloth/the 2nd SB non-weaving cloth) of the thickness of a SB non-weaving cloth 14 and the thickness of the 2nd SB non-weaving cloth 16 (below be called Thickness Ratio), more than 1.4, is preferably 1.6～2.9.Pay with thickness and be greater than the 2nd SB non-weaving cloth 16 according to above-mentioned condition by the order that makes a SB non-weaving cloth 14, at the coating hot-melt adhesive and make it and moisture permeable membrane when bonding, can make hot-melt adhesive be diffused in the space of a SB non-weaving cloth 14, thereby can reduce the amount of the hot-melt adhesive that arrives MB non-weaving cloth 12, the hot-melt adhesive that reaches on a small quantity the MB non-weaving cloth also can be intercepted by this MB non-weaving cloth 12, can intercept its infiltration fully.
The one SB non-weaving cloth and the 2nd SB non-weaving cloth, as long as in above-mentioned scope, respectively or any one layer of two-layer above SB non-weaving cloth that can be stacked.
Poisture-penetrability non-weaving cloth laminates 20 of the present invention, have as shown in Figure 2 with hot-melt adhesive 22 and engage the hot-melt adhesive coating predetermined face 18 of layered nonwoven fabric 10 and the formation of moisture permeable membrane 24.
The hot-melt adhesive 22 here used, preferably use olefin-based raw polymer (ethylene propylene copolymer), styrene block copolymer raw polymer (SEBS, SEPS, SIS, SBS), polyamide, polyester, ammonia ester polymerizable raw material system thermoplastic resin etc., but the example that above-mentioned hot-melt adhesive is just enumerated, be not limited to them, can use various known hot-melt adhesives.
Moisture permeable membrane 24, can enumerate the film that for example film self has poisture-penetrability; By film is stretched, form minute aperture, thereby given the film of poisture-penetrability; Perhaps to melt extruding the vistanex that contains packing material, the film obtained stretched, and forms the film of minute aperture etc.As described vistanex, can enumerate the vistanex that for example comprises high density polyethylene (HDPE), low density polyethylene (LDPE), LLDPE, ethyleneα-olefincopolymer, polypropylene, propylene alpha olefin copolymer or their mixture.The material of moisture permeable membrane, can be a kind of, can be also two or more mixtures.In addition, the packing material here used is not particularly limited, can be inorganic be packing material, can be also the organic system packing material.For example as inorganic be packing material, can enumerate oxide, hydroxide, carbonate, sulfate, silicate of alkaline-earth metal, periodic table of elements IIIB family element etc., as the organic system packing material, can enumerate the cross-linking agent powder of the cellulose powders such as wood powder, paper pulp, organosilicon, phenol etc. etc.These can use and a kind ofly also can combine two or more uses.Wherein, consider the stable of cost, quality, preferably calcium carbonate, barium sulfate etc.In resin combination for the manufacture of moisture permeable membrane, also can contain in the scope of not damaging the object of the invention the additives such as antioxidant, ultra-violet absorber, antiseptic, mould inhibitor, antirust agent, slip agent, pigment, heat-resisting stabilizing agent.
Poisture-penetrability non-weaving cloth laminates 20, be with hot-melt adhesive 22 bonding the structure of hot-melt adhesive coating predetermined face 18 and moisture permeable membrane 24, owing to arriving the amount of the hot-melt adhesive of MB non-weaving cloth 12 in the space of having reduced when bonding hot-melt adhesive 22 and be diffused in from hot-melt adhesive coating predetermined face 18 a SB non-weaving cloth 14, so compare with laminates in the past the pollution that is difficult for the generation bonding agent.
As poisture-penetrability non-weaving cloth laminates 20 being used as to the example of the amenities of bottom, the use that has the child to use with, adult abandoned the use that type diaper, child use with, adult and abandoned type underpants, women use sanitary napkin etc., at Fig. 3, mean as the typical example of amenities of the present invention, with the side schematic view of the absorbability part of abandoning the type diaper.
As shown in Figure 3, by the situation of liquid permeability top layer 32 and liquid impermeability bottom clamping absorber 34, be exactly the method while being used as absorbent commodity.As shown in Figure 3, order is paid with thickness all the place that than the 2nd SB non-weaving cloth 16 a large SB non-weaving cloth 14 approaches skin when being used as diaper, thus with there is laminates in the past that identical catalogue pays and compare and use sense to become good.
In addition, the present invention comprises the amenities that contains above-mentioned layered nonwoven fabric, the amenities that contains above-mentioned poisture-penetrability non-weaving cloth laminates, the amenities that contains above-mentioned layered nonwoven fabric and non-weaving cloth laminates.
As above-mentioned amenities, for example can enumerate, layered nonwoven fabric or non-weaving cloth laminates are used as to the amenities of three-dimensional rivel, absorber lapping, top layer, liquid diffusion sheet, lug material etc.
Composite non-weaving cloth laminates of the present invention, on the surface of the first spun-bonded non-woven of above-mentioned layered nonwoven fabric, by hot-melt adhesive stacked more than one the tablet of selecting from the group formed by non-weaving cloth, fabric, paper, flashing, net and synthetic resin.
As the amenities that contains the composite non-weaving cloth laminates of the present invention, such as enumerating amenities that the composite non-weaving cloth laminates is contained as three-dimensional rivel etc.
As the composite non-weaving cloth laminates, such as can be for relevant rag goods, materials and equipments for of medical robe, mouth mask, mattress, life, industrial filter, wiping device, automobile inside/outside decorative material, sound-absorbing material, spring cup (spring cover), Farm mulch (ベ か け) material, indoor paster, fruit bag etc. for goods, materials and equipments for goods, materials and equipments.
Embodiment
Below, enumerate embodiment and further describe the present invention, but the present invention is not limited to these.
Here, the evaluation of each characteristic or mensuration are carried out by the following method.
(1) the spun-bonded fibre diameter (dawn: d: the grams of the fiber of every 9000m length)
1d=1g/ fibre length 9000m
For the layered nonwoven fabric sample of making, test piece 10 points of sampling 10mm * 10mm.As for the sampling place, in the MD direction, be any place, after the CD direction is to remove the two ends 20cm of layered nonwoven fabric sample, linearity is got 10 places with even interval.
The ECLIPSE E400 microscope that uses NIKON to manufacture, with 20 times of multiplication factors, read after decimal point the 1st by the spun-bonded fibre diameter with μ m unit.Measure the diameter at any 20 places for each test piece.So measure respectively (measuring point of diameter is for amounting to 200 points) for 10 test pieces.According to the measurement result of diameter, obtain the grams of the fiber of every 9000m with regard to each each measuring point.Now, polyacrylic density is according to 0.91g/cm 3calculate.
For each measuring point of 200, the grams of the fiber of every 9000m that converts respectively, obtain the mean value of this scaled value, and after the decimal point that rounds up the 2nd, as the spun-bonded fibre diameter of each layered nonwoven fabric sample.
Two sides for a SB non-weaving cloth 14 and the 2nd SB non-weaving cloth 16 is measured respectively.
(2) meltblown fibers diameter
For the layered nonwoven fabric sample of making, test piece 10 points of sampling 10mm * 10mm.As for the sampling place, in the MD direction, be any place, after the CD direction is to remove the two ends 20cm of layered nonwoven fabric sample, on straight line, with even interval, get 10 places.
The S-3500N type electron microscope that uses Hitachi Ltd. to manufacture, with 15,000 times of multiplication factors, read after decimal point the 2nd by the meltblown fibers diameter with μ m unit.Measure the diameter at any 20 places for each test piece.So measure respectively (measuring point of diameter is for amounting to 200 points) for 10 test pieces.
Obtain the mean value of 200 measuring points, after the decimal point that rounds up the 1st, as the meltblown fibers diameter of each layered nonwoven fabric sample.
(3) 5% modulus indexes
After removing the two ends 20cm of the layered nonwoven fabric sample of making, for at CD direction 5 deciles, at 15 points that amount to of MD direction 3 deciles, the test piece of sampling CD, MD direction 30mm * 200mm, install to control length on the cupping machine of low speed elongation test type, with draw speed 300mm/ minute, give loading until the test piece fracture.The mean value of intensity when test piece is extended to 5% is obtained (after the decimal point that rounds up the 2nd) in MD, CD direction.Using this value as 5% modulus, 5% modulus index calculates according to the following equation.
5% modulus index=5% modulus [N/30mm]/catalogue is paid [g/m 2]
(4) air permeability
After removing the two ends 20cm of the layered nonwoven fabric sample of making, for at CD direction 5 deciles, at 15 points that amount to of MD direction 3 deciles, the square test piece of sampling 200mm, according to JIS L 1092-1999,8.27.1 permeability test A method (Fu Leizefa) is implemented to measure, and from its mean value, calculates air permeability [cc/cm 2/ s].
(5) water pressure resistance
After removing the two ends 20cm of the layered nonwoven fabric sample of making, for at CD direction 5 deciles, at 15 points that amount to of MD direction 3 deciles, the square test piece of sampling 200mm, according to JIS L 1092-1992,5.1 the hydrostatic platen press of fastness to water test A method is implemented to measure, and from its mean value, calculates water pressure resistance [mmAq].
(6) flexibility
Touch the above-mentioned layered nonwoven fabric sample made from hand, checked the test of sense of touch now, estimated according to following benchmark.
◎: very soft, the sense of not hardening.
Zero: softness, the sense of substantially not hardening.
*: hard, the sense of hardening is arranged.
(7) contaminative of hot-melt adhesive
Poisture-penetrability non-weaving cloth laminates for the coiling state carries out debatching, degree of adhesion between the back side of the surface of the layered nonwoven fabric of one side's poisture-penetrability non-weaving cloth laminates of visual inspection overlapping poisture-penetrability non-weaving cloth laminates now and the poisture-penetrability film of the opposing party's poisture-penetrability non-weaving cloth laminates, estimated according to following benchmark.
◎: there is no the pollution of hot-melt adhesive.
Zero: the pollution of hot-melt adhesive is arranged a little, but the film of pollution section does not have breakage (pinprick).
*: the pollution of hot-melt adhesive is arranged, and the film of pollution section has breakage (pinprick).
Embodiment 1
The spun-bonded non-woven raw material is used polypropylene (Noblen, MFR (measuring at 230 ℃ of temperature, loading 2.16kg according to JIS K7210-1999): 65g/10 minute).Be set as 25 ℃ of 220 ℃ of molten resin temperatures, single hole discharge 0.40g/min, cooling wind speed 1.4m/s, cooling air temperature, obtain fibre diameter 1.2d, stacked 2 layers of spun-bonded non-woven and order and pay as 10.8g/m 2a SB non-weaving cloth 14.
The melt-blowing nonwoven raw material is used polypropylene (Noblen, MFR (measuring at 230 ℃ of temperature, loading 2.16kg according to JIS K7210-1999): 900g/10 minute).At 290 ℃ of melting mixings of forming temperature, extrude the melting mixing thing that this obtains with extruder with meltblown die in the height heated air flow, obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Except making stacked number is 1 layer, all the other and a SB non-weaving cloth 14 similarly operate, and obtaining fibre diameter is that 1.2d, order are paid as 5.3g/m 2the 2nd SB non-weaving cloth 16.
Order stacked above one another with a SB non-weaving cloth 14, MB non-weaving cloth 12, the 2nd SB non-weaving cloth 16, it is passed through between embossing roller (compression joint area rate 18%) and plain-barreled roll, regulate pressure and temperature, carry out the processing of hot rolling line, the thickness that the thickness that obtains a SB non-weaving cloth 14 is 163 μ m, the 2nd SB non-weaving cloth 16 is that 90 μ m, order are paid than being 2.0, Thickness Ratio is 1.8, catalogue is paid as 17g/m 2layered nonwoven fabric 10.Measure 5% modulus index, air permeability, water pressure resistance, the flexibility of this layered nonwoven fabric 10.
By LLDPE (density: 0.924g/cm 3, MFR:2g/10 minute (190 ℃)) 40 weight portions and calcium carbonate (average grain diameter: 1.7 μ m) 60 weight portions, with cylinder, be uniformly mixed, modulate resin combination.The resin combination obtained is supplied to double screw extruder, after 230 ℃ of melting mixings of barrel zone temperature, extrudes from the T-shaped mould of 230 ℃ of mold temperatures, be shaped to film.For the film obtained, carry out uniaxial tension with 3 times of 80 ℃ of draft temperatures, draw speed 20m/min, draw ratio, obtaining thickness is the poisture-penetrability film 24 of 25 μ m.
On the hot-melt adhesive coating predetermined face 18 of layered nonwoven fabric 10, with coating weight 3g/m 2coating olefin-based hot-melt adhesive 22, with 24 laminatings of poisture-penetrability film, produce poisture-penetrability non-weaving cloth laminates 20.Measure the contaminative of hot-melt adhesive for this poisture-penetrability non-weaving cloth laminates 20.
The results are shown in table 1.
Embodiment 2
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 1.4d, order are paid as 9.4g/m 2a SB non-weaving cloth 14 and fibre diameter be that 1.4d, order are paid as 4.7g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Similarly to Example 1, (thickness that the thickness of a SB non-weaving cloth 14 is 148 μ m, the 2nd SB non-weaving cloth 16 is that 81 μ m, order are paid than being 2.0 to other conditions, Thickness Ratio is 1.8, catalogue is paid as 15g/m to produce layered nonwoven fabric 10 2) and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 1.
Embodiment 3～5
In embodiment 1, regulate condition of molding, obtain respectively order and pay as 9.4g/m 2(embodiment 3), 8.7g/m 2(embodiment 4), 10.6g/m 2the one SB non-weaving cloth 14 and the order of (embodiment 5) are paid as 4.7g/m 2(embodiment 3), 5.4g/m 2(embodiment 4), 3.5g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 5).
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 143 μ m (embodiment 3), 130 μ m (embodiment 4), 153 μ m (embodiment 5), the thickness of the 2nd SB non-weaving cloth 16 is 78 μ m (embodiment 3), 92 μ m (embodiment 4), 69 μ m (embodiment 5), order is paid than being 2.0 (embodiment 3), 1.6 (embodiment 4), 3.0 (embodiment 5), Thickness Ratio is 1.8 (embodiment 3), 1.4 (embodiment 4), 2.2 (embodiment 5), and catalogue is paid as 15g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 1.
Embodiment 6～8
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 9.4g/m 2(embodiment 6), 10.6g/m 2(embodiment 7), 8.7g/m 2the one SB non-weaving cloth 14 of (embodiment 8) and fibre diameter are that 0.8d, order are paid as 4.7g/m 2(embodiment 6), 3.5g/m 2(embodiment 7), 5.4g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 8).
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 134 μ m (embodiment 6), 140 μ m (embodiment 7), 123 μ m (embodiment 8), the thickness of the 2nd SB non-weaving cloth 16 is 74 μ m (embodiment 6), 67 μ m (embodiment 7), 89 μ m (embodiment 8), order is paid than being 2.0 (embodiment 6), 3.0 (embodiment 7), 1.6 (embodiment 8), Thickness Ratio is 1.8 (embodiment 6), 2.1 (embodiment 7), 1.4 (embodiment 8), and catalogue is paid as 15g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 1.
Embodiment 9
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 8.7g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.8d, order are paid as 4.3g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 2 μ m, order are paid as 2.0g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, pay than being 2.0, Thickness Ratio is 1.8, catalogue is paid as 15g/m by the order that the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 125 μ m, the 2nd SB non-weaving cloth 16 is 68 μ m, layered nonwoven fabric 10 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 1.
Embodiment 10
In embodiment 1, regulate condition of molding, obtaining fibre diameter is that 0.5d, order are paid as 8.7g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.5d, order are paid as 5.4g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Similarly to Example 1, the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 117 μ m, the 2nd SB non-weaving cloth 16 is that 85 μ m, order are paid than being 1.6 to other conditions, Thickness Ratio is 1.4, catalogue is paid as 15g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 1.
Embodiment 11～14
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 1.2d, order are paid as 7.1g/m 2(embodiment 11), 8.1g/m 2(embodiment 12), 9.1g/m 2(embodiment 13), 7.5g/m 2the one SB non-weaving cloth 14 of (embodiment 14) and fibre diameter are that 1.2d, order are paid as 3.9g/m 2(embodiment 11), 4.0g/m 2(embodiment 12), 3.0g/m 2(embodiment 13), 4.6g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 14).
And obtaining fibre diameter is that 2 μ m, order are paid as 2.0g/m 2(embodiment 11), 0.9g/m 2the MB non-weaving cloth 12 of (embodiment 12～14).
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 109 μ m (embodiment 11), 122 μ m (embodiment 12), 133 μ m (embodiment 13), 111 μ m (embodiment 14), the thickness of the 2nd SB non-weaving cloth 16 is 67 μ m (embodiment 11), 67 μ m (embodiment 12), 53 μ m (embodiment 13), 78 μ m (embodiment 14), the order of layered nonwoven fabric 10 is paid than being 1.8 (embodiment 11), (2.0 embodiment 12), (3.0 embodiment 13), (1.6 embodiment 14), Thickness Ratio is 1.6 (embodiment 11), (1.8 embodiment 12), (2.5 embodiment 13), (1.4 embodiment 14), catalogue is paid as 13g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 2.
Embodiment 15,16
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 8.1g/m 2(embodiment 15), 7.5g/m 2the one SB non-weaving cloth 14 of (embodiment 16) and fibre diameter are that 0.8d, order are paid as 4.0g/m 2(embodiment 15), 4.6g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 16).
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 115 μ m (embodiment 15), 104 μ m (embodiment 16), the thickness of the 2nd SB non-weaving cloth 16 is 63 μ m (embodiment 15), 75 μ m (embodiment 16), the order of layered nonwoven fabric 10 is paid than being 2.0 (embodiment 15), 1.6 (embodiment 16), Thickness Ratio is 1.8 (embodiment 15), 1.4 (embodiment 16), and catalogue is paid as 13g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 2.
Embodiment 17,18
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.5d, order are paid as 8.1g/m 2(embodiment 17), 7.5g/m 2the one SB non-weaving cloth 14 of (embodiment 18) and fibre diameter are that 0.5d, order are paid as 4.0g/m 2(embodiment 17), 4.6g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 18).
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 110 μ m (embodiment 17), 101 μ m (embodiment 18), the thickness of the 2nd SB non-weaving cloth 16 is 62 μ m (embodiment 17), 73 μ m (embodiment 18), the order of layered nonwoven fabric 10 is paid than being 2.0 (embodiment 17), 1.6 (embodiment 18), Thickness Ratio is 1.8 (embodiment 17), 1.4 (embodiment 18), and catalogue is paid as 13g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 2.
Embodiment 19
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 1.2d, order are paid as 6.1g/m 2a SB non-weaving cloth 14 and fibre diameter be that 1.2d, order are paid as 3.0g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, pay than being 2.0, Thickness Ratio is 1.8, catalogue is paid as 10g/m by the order that the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 90 μ m, the 2nd SB non-weaving cloth 16 is 49 μ m, layered nonwoven fabric 10 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 2.
Embodiment 20～22
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 6.1g/m 2(embodiment 20), 6.9g/m 2(embodiment 21), 5.6g/m 2the one SB non-weaving cloth 14 of (embodiment 22) and fibre diameter are that 0.8d, order are paid as 3.0g/m 2(embodiment 20), 2.3g/m 2(embodiment 21), 3.5g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 22).
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 87 μ m (embodiment 20), 97 μ m (embodiment 21), 80 μ m (embodiment 22), the thickness of the 2nd SB non-weaving cloth 16 is 48 μ m (embodiment 20), 37 μ m (embodiment 21), 56 μ m (embodiment 22), the order of layered nonwoven fabric 10 is paid than being 2.0 (embodiment 20), 3.0 (embodiment 21), 1.6 (embodiment 22), Thickness Ratio is 1.8 (embodiment 20), 2.6 (embodiment 21), 1.4 (embodiment 22), and catalogue is paid as 10g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 2 (embodiment 20), table 3 (embodiment 21,22).
Embodiment 23～25
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.5d, order are paid as 6.1g/m 2(embodiment 23), 6.9g/m 2(embodiment 24), 6.9g/m 2the one SB non-weaving cloth 14 of (embodiment 25) and fibre diameter are that 0.5d, order are paid as 3.0g/m 2(embodiment 23), 2.3g/m 2(embodiment 24), 2.3g/m 2the 2nd SB non-weaving cloth 16 of (embodiment 25).
And obtaining order pays as 0.9g/m 2, the fibre diameter MB non-weaving cloth 12 that is 2 μ m (embodiment 23,24), 1 μ m (embodiment 25).
Other conditions similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 85 μ m (embodiment 23), 94 μ m (embodiment 24), 94 μ m (embodiment 25), the thickness of the 2nd SB non-weaving cloth 16 is 45 μ m (embodiment 23), 38 μ m (embodiment 24), 38 μ m (embodiment 25), the order of layered nonwoven fabric 10 is paid than being 2.0 (embodiment 23), 3.0 (embodiment 24), 3.0 (embodiment 25), Thickness Ratio is 1.9 (embodiment 23), 2.5 (embodiment 24), 2.5 (embodiment 25), and catalogue is paid as 10g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 3.
Embodiment 26
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 4.0g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.8d, order are paid as 2.1g/m 2the 2nd SB non-weaving cloth 16.
And obtaining order pays as 0.9g/m 2, the fibre diameter MB non-weaving cloth 12 that is 1 μ m.
Other conditions similarly to Example 1, pay than being 1.9, Thickness Ratio is 1.7, catalogue is paid as 7g/m by the order that the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 58 μ m, the 2nd SB non-weaving cloth 16 is 34 μ m, layered nonwoven fabric 10 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 3.
Embodiment 27
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.5d, order are paid as 4.1g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.5d, order are paid as 2.0g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 1 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, pay than being 2.1, Thickness Ratio is 1.9, catalogue is paid as 7g/m by the order that the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 63 μ m, the 2nd SB non-weaving cloth 16 is 33 μ m, layered nonwoven fabric 10 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 3.
Embodiment 28
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 14.3g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.8d, order are paid as 4.8g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 1 μ m, order are paid as 0.1g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, pay than being 3.0, Thickness Ratio is 2.9, catalogue is paid as 19g/m by the order that the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 220 μ m, the 2nd SB non-weaving cloth 16 is 76 μ m, layered nonwoven fabric 10 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 3.
Embodiment 29
In embodiment 1, regulate condition of molding, obtaining respectively fibre diameter is that 0.8d, order are paid as 11.1g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.8d, order are paid as 5.5g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 1 μ m, order are paid as 0.4g/m 2 mB non-weaving cloth 12.
Other conditions similarly to Example 1, pay than being 2.0, Thickness Ratio is 1.8, catalogue is paid as 17g/m by the order that the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 168 μ m, the 2nd SB non-weaving cloth 16 is 86 μ m, layered nonwoven fabric 10 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 3.
Embodiment 30,31
Similarly to Example 1, obtaining respectively fibre diameter is that 0.8d, order are paid as 8.1g/m 2a SB non-weaving cloth 14 and fibre diameter be that 0.8d, order are paid as 4.0g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Except the embossing roller that uses mint-mark area occupation ratio 6% (embodiment 30), 25% (embodiment 31), all the other operate similarly to Example 1, the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 115 μ m (embodiment 30), 115 μ m (embodiment 31), the thickness of the 2nd SB non-weaving cloth 16 is 63 μ m (embodiment 30), 63 μ m (embodiment 31), the order of layered nonwoven fabric 10 is paid than being 2.0 (embodiment 30), 2.0 (embodiment 31), Thickness Ratio is 1.8 (embodiment 30), 1.8 (embodiment 31), and catalogue is paid as 13g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 3.
Comparative example 1
In embodiment 1, regulate condition of molding, and the SB nonwoven layer that makes to form a SB non-weaving cloth is one deck, obtaining respectively fibre diameter is that 4.0d, order are paid as 3.1g/m 2a SB non-weaving cloth 14 and fibre diameter be that 4.0d, order are paid as 3.0g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 6 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Similarly to Example 1, the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 54 μ m, the 2nd SB non-weaving cloth 16 is that 53 μ m, order are paid than being 1.0 to other conditions, Thickness Ratio is 1.0, catalogue is paid as 7g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 4.
Comparative example 2
Operation similarly to Example 1, obtaining respectively fibre diameter is that 1.2d, order are paid as 8.7g/m 2a SB non-weaving cloth 14 and fibre diameter be that 1.2d, order are paid as 5.4g/m 2the 2nd SB non-weaving cloth 16.
And obtaining fibre diameter is that 2 μ m, order are paid as 0.9g/m 2 mB non-weaving cloth 12.
Use the embossing roller of compression joint area rate 30% to carry out thermo-compressed, the thickness that the thickness that produces layered nonwoven fabric 10[the one SB non-weaving cloth 14 is 130 μ m, the 2nd SB non-weaving cloth 16 is that 92 μ m, order are paid than being 1.6, Thickness Ratio is 1.4, catalogue is paid as 15g/m 2] and poisture-penetrability non-weaving cloth laminates 20, carry out similarly to Example 1 evaluation and the mensuration of each characteristic.
The results are shown in table 4.
[table 1]
Figure S2007800037606D00191
[table 2]
[table 3]
Figure S2007800037606D00211
[table 4]
Table 4
Figure S2007800037606D00221

Claims (15)

1. a layered nonwoven fabric, it is characterized in that, it is to comprise the first spun-bonded non-woven of containing acrylic polymer, be laminated in the melt-blowing nonwoven that contains acrylic polymer on this first spun-bonded non-woven, be laminated in the second spun-bonded non-woven that contains acrylic polymer on this melt-blowing nonwoven, and catalogue is paid at 30g/m 2following layered nonwoven fabric, the order of the first spun-bonded non-woven is paid at 3～25g/m 2scope, the order of the second spun-bonded non-woven is paid at 1～11g/m 2scope, and the order of the first spun-bonded non-woven pay ratio that the order of the second spun-bonded non-woven pays the order of pay/second spun-bonded non-woven of order of the first spun-bonded non-woven pay 1.6 or more, the ratio of the thickness of the first spun-bonded non-woven and the thickness of the second spun-bonded non-woven be the thickness of the thickness of the first spun-bonded non-woven/second spun-bonded non-woven more than 1.4, the order of melt-blowing nonwoven is paid and is less than 3g/m 2, the compression joint area rate is in 6～25% scope.
2. layered nonwoven fabric according to claim 1, wherein, form the fibre diameter of fiber of the first spun-bonded non-woven and the second spun-bonded non-woven below 1.4 dawn, forms the fibre diameter of fiber of melt-blowing nonwoven in the scope of 1～5 μ m.
3. layered nonwoven fabric according to claim 1 and 2, wherein, 5% modulus index of layered nonwoven fabric is at 0.15～0.38N/30mm/ (g/m 2) scope.
4. a poisture-penetrability non-weaving cloth laminates, is characterized in that, on the surface of the first spun-bonded non-woven of the described layered nonwoven fabric of any one in claim 1～3, by hot-melt adhesive, is laminated with the poisture-penetrability film.
5. poisture-penetrability non-weaving cloth laminates according to claim 4, wherein, the poisture-penetrability film is perforated membrane.
6. one kind with abandoning the type diaper, it is characterized in that, the described poisture-penetrability non-weaving cloth of claim 4 or 5 laminates is used as to bottom.
7. a women use sanitary napkin, is characterized in that, the described poisture-penetrability non-weaving cloth of claim 4 or 5 laminates is used as to bottom.
8. an amenities, is characterized in that, contains the described layered nonwoven fabric of any one in claim 1～3.
9. an amenities, is characterized in that, contains the described poisture-penetrability non-weaving cloth of any one laminates in claim 4,5.
10. an amenities, is characterized in that, contains the described layered nonwoven fabric of any one in claim 1～3 and the described poisture-penetrability non-weaving cloth of any one laminates in claim 4,5.
A 11. composite non-weaving cloth laminates, it is characterized in that, on the surface of the first spun-bonded non-woven of the described layered nonwoven fabric of any one in claim 1～3, be laminated with more than one the tablet of selecting in the group from being formed by non-weaving cloth, fabric, paper, flashing by hot-melt adhesive.
A 12. composite non-weaving cloth laminates, it is characterized in that, on the surface of the first spun-bonded non-woven of the described layered nonwoven fabric of any one in claim 1～3, be laminated with more than one the tablet of selecting in the group from being formed by non-weaving cloth, fabric, paper, net by hot-melt adhesive.
A 13. composite non-weaving cloth laminates, it is characterized in that, on the surface of the first spun-bonded non-woven of the described layered nonwoven fabric of any one in claim 1～3, be laminated with more than one the tablet of selecting in the group from being formed by non-weaving cloth, fabric, paper, synthetic resin by hot-melt adhesive.
14. an amenities, is characterized in that, contains the described composite non-weaving cloth laminates of any one in claim 11～13.
15. amenities according to claim 14, wherein, contain the composite non-weaving cloth laminates as three-dimensional rivel.
CN2007800037606A 2006-02-03 2007-01-30 Nonwoven-fabric laminate, moisture-permeable nonwoven-fabric laminated sheet comprising nonwoven-fabric laminate, and sanitary supply employing these Active CN101374652B (en)

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